camharris.sol

tech, blockchain dev, photography… @coinbase engineering

[Max Resnick @MaxResnick]

https://t.co/R4DhDucYat

[Richard Wu @0xrwu]

Today, we fully rolled out Coinbase's first production @solana smart contract!

As part of the Vector acquisition, we brought over some hardcore Solana devs who are looking for every opportunity to optimize the DEX trading experience.

We rolled out a lightweight aggregator that gives us enough control to ensure 99.9% of Solana DEX tokens are routeable (quote errors are down 80%!).

More to come later this year: stay tuned 👀

[camharris.sol @c4mharris]

Accelerate 🏎️

[Brennan Watt @bw_solana]

300ms slots happening on testnet 🏎️🏎️

best part? ~36 hour epochs --> less time to wait for 250ms slots

[Ben | Circular.fi @bencirc]

MEV/Arbitrage have evolved into a professional, institutional-grade form on @solana.

Switching from 400-millisecond blocks to 200-millisecond blocks doesn't change anything for top-players... the network is just faster 🔥

[ethn @ethanyish]

I went on @theoryvc's In Practice podcast with @BEBischof and talked about what it takes to make blockchain data usable for the world's top financial institutions (on a ferris wheel!)

We talked about:

-> Why blockchain data is a Turing machine's output, not a database - and what it takes to make it queryable

-> Why my title is Chief Data Plumber (5PB in one copy, ~30PB replicated worldwide)

-> How AI agents shift the leverage from tool experts to domain experts
Inside our semantic layer: 12,000 dbt models and an attribution dataset built by humans, accelerated by agents

And yes, we're hiring engineers who want to solve problems at 3%-of-the-web scale - reach out if that's you

Full episode + blog linked below

[camharris.sol @c4mharris]

Excited to share our Q2 @Solana Validator Performance Report. I helped author this quarter’s report, covering our validator fleet, client strategy, DoubleZero, and preparations for Alpenglow.

@CoinbasePltfrm

[Coinbase Platform @CoinbasePltfrm]

Our Q2 2026 @Solana validator report is live.

Coinbase validators outperformed network averages in Q2:
• 6.52% APY vs. 6.38% network average
• 0.035% skip rate vs. 0.136% network average
• 41.63M SOL staked across 23 validators in 7 countries
• Fleet now runs on DoubleZero and is preparing for the Alpenglow upgrade later this year

Read the full report: https://t.co/HEYSWWdUy9

[camharris.sol @c4mharris]

@bw_solana Lfg

[camharris.sol @c4mharris]

@cavemanloverboy

[great hylord cavey phd ∿ @cavemanloverboy]

yuge yuge week. there is a plan for the proposals for

1) The Burn SIMD, aka The Resource Fee SIMD
2) The Disinflation SIMD

to go live this week for voting. for these changes to make it into the protocol and into agave/fd we need

1) proposals to swiftly get support from 15% stake, which will make the proposal go to a vote
2) the cluster to vote yes. note that stakers will be able to vote this time around instead of relying on validators to vote on their behalf (validators can still specify default vote).
3) implementations to be reviewed and merged

contact your local validator and core dev asap, and get your stake withdraw authority keys ready.

The Cavey Cool validator will be supporting and voting yes on both proposals : D

[Solana Developers @solana_devs]

Alpenglow bug bounty competition with a prize pool of up to 50,000 SOL 👇

[camharris.sol @c4mharris]

Is x402 really beginning to take off or..?

[Cloudflare @Cloudflare]

We're opening the waitlist for our Monetization Gateway, which will allow you to charge for any web page, dataset, API, or MCP tool behind Cloudflare. The charges will settle in stablecoins over the x402 open protocol. https://t.co/pvICtEIixj

[Anza @anza_xyz]

Agave v4.1 is now recommended for mainnet validators and sets the stage for an exhilarating v4.2. Introducing prerequisites for:

- Alpenglow
- 100M CU blocks
- 200ms slot times

[camharris.sol @c4mharris]

Finally online gents

[Coinbase Platform @CoinbasePltfrm]

Coinbase’s @Solana validator is now connected to @DoubleZero Edge.

By utilizing high-bandwidth, ultra-low latency infrastructure, we're supporting technology that delivers market data to traders faster and helps upgrade onchain trading infrastructure.

Building a faster, more robust onchain future. Onward.

[ethn @ethanyish]

I’m excited to announce our $40M Series B, led by @AmplifyPartners with @kleinerperkins, and @Theoryvc.

After knowing each other for 10 years and meeting in our freshman year in college, Cheng Han and I came together in 2021 to solve the massive problem with blockchains - the data was fragmented across hundreds of chains and unusable at scale.

Today, we manage 30+ petabytes of blockchain data that serves as the onchain system of record for institutions like Visa, BCG, and major banks and asset managers.

A lot has changed since our Series A two years ago:
→ Revenue grew 10x
→ 150+ enterprise customers
→ Visa and BCG built their stablecoin dashboards on Allium
→ Data cited by research institutions from the Fed to Stanford

Since we founded Allium 5 years ago, blockchain went from retail speculation to institutional infrastructure for 24/7 settlement, programmable payments, and tokenized assets that trade like equities. Allium went from 3 people in a room to the data layer leading institutions trust to operate onchain.

Thank you to our customers, investors, and especially the Allium team for helping us reach this milestone. It's been an incredible journey so far, and we're excited to continue building the system of record for onchain finance.

A special thank you to @dbeyer123 from Amplify who’s joining our board, @ttunguz @SpencerFarrar @LM_Braswell and everyone who believed in us from the beginning.

And thank you to @bdanweiss and @FortuneMagazine for covering the news! Read more about our announcement:

[Brennan Watt @bw_solana]

XDP will be default enabled on Agave starting with v4.2 (early August on mainnet).

try it out NOW so we can fix any unique driver/NIC combo issues you might have

[Sam Schubert @minnus]

https://t.co/m1DfIATIPS

[Coinbase Platform @CoinbasePltfrm]

Our Q1 2026 Solana Validator Performance Report is live.

Our Solana validators at a glance:
- 40.48M SOL staked (9.52% of total staked SOL) across validators distributed across 6 countries and 2 bare metal providers
- Delivering a 7.02% APY (vs. network 6.95%) and a skip rate of 0.041% (vs. network 0.198%)
- Supporting 5 validator clients (Harmonic, Jito, JitoBAM, Firedancer, and Rakurai) as primary or secondary
- Runs on 100% bare metal servers (AMD EPYC 9275F and 9575F)

[Brennan Watt @bw_solana]

200ms slots are on the menu…

… Agave v4.2 is going to be the most insane client upgrade in Solana history

[Anza @anza_xyz]

1/ Agave 4.0 is now recommended for mainnet validators. XDP for Turbine, QUIC-only TPU ingestion, faster replay stage, and a long list of feature-gated SIMDs activating during the cycle. Here's what's changing 🧵

[Anza @anza_xyz]

Introducing P-Token: an optimized rewrite of the SPL Token program for Solana, now live on mainnet. Token instructions are about 96% cheaper in compute, freeing 12-13% more block space for the network without altering block limits 🧵